diff --git a/hpb/extension.h b/hpb/extension.h
index 100296dfab..d5fa632e31 100644
--- a/hpb/extension.h
+++ b/hpb/extension.h
@@ -61,14 +61,14 @@ class ExtensionIdentifier : public ExtensionMiniTableProvider {
   using Extension = ExtensionType;
   using Extendee = ExtendeeType;
 
- private:
   constexpr explicit ExtensionIdentifier(
       const upb_MiniTableExtension* mini_table_ext)
       : ExtensionMiniTableProvider(mini_table_ext) {}
+
+ private:
   constexpr uint32_t number() const {
     return upb_MiniTableExtension_Number(mini_table_ext());
   }
-
   friend struct PrivateAccess;
 };
 
diff --git a/hpb/internal/internal.h b/hpb/internal/internal.h
index 028af6d510..1019f13237 100644
--- a/hpb/internal/internal.h
+++ b/hpb/internal/internal.h
@@ -9,7 +9,6 @@
 #define GOOGLE_PROTOBUF_HPB_INTERNAL_INTERNAL_H__
 
 #include <cstdint>
-#include <utility>
 
 #include "upb/mem/arena.h"
 #include "upb/message/message.h"
@@ -38,11 +37,6 @@ struct PrivateAccess {
     return typename T::Proxy(upb_Message_New(T::minitable(), arena), arena);
   }
 
-  template <typename T, typename... Args>
-  static auto InvokeConstructor(Args&&... args) {
-    return T(std::forward<Args>(args)...);
-  }
-
   template <typename ExtensionId>
   static constexpr uint32_t GetExtensionNumber(const ExtensionId& id) {
     return id.number();
diff --git a/hpb_generator/gen_extensions.cc b/hpb_generator/gen_extensions.cc
index 8374ed20cb..7be6767618 100644
--- a/hpb_generator/gen_extensions.cc
+++ b/hpb_generator/gen_extensions.cc
@@ -9,6 +9,7 @@
 
 #include "absl/strings/str_cat.h"
 #include "google/protobuf/compiler/hpb/context.h"
+#include "google/protobuf/compiler/hpb/gen_utils.h"
 #include "google/protobuf/compiler/hpb/names.h"
 #include "upb_generator/c/names.h"
 
@@ -68,18 +69,14 @@ void WriteExtensionIdentifier(const protobuf::FieldDescriptor* ext,
   if (ext->extension_scope()) {
     ctx.EmitLegacy(
         R"cc(
-          const hpb::internal::ExtensionIdentifier<$0, $3> $4::$2 =
-              hpb::internal::PrivateAccess::InvokeConstructor<
-                  hpb::internal::ExtensionIdentifier<$0, $3>>(&$1);
+          const hpb::internal::ExtensionIdentifier<$0, $3> $4::$2(&$1);
         )cc",
         ContainingTypeName(ext), mini_table_name, ext->name(),
         CppTypeParameterName(ext), ClassName(ext->extension_scope()));
   } else {
     ctx.EmitLegacy(
         R"cc(
-          const hpb::internal::ExtensionIdentifier<$0, $3> $2 =
-              hpb::internal::PrivateAccess::InvokeConstructor<
-                  hpb::internal::ExtensionIdentifier<$0, $3>>(&$1);
+          const hpb::internal::ExtensionIdentifier<$0, $3> $2(&$1);
         )cc",
         ContainingTypeName(ext), mini_table_name, ext->name(),
         CppTypeParameterName(ext));